Tried ≤100 MHz FSB?

That never occurred to me. Are 3dfx cards affected by FSB?

The board and CPU are both 133mhz parts along with the RAM in this machine.

I guess I could drop it down as a test. The voodoo card in here is really only temporary as it's really outclassed by the 9700 pro or the 5900 ultra I'm going to swap in for the radeon.

If your PCI bus is running at standard clocks, normally not. I just remembered that someone posted an image similar to yours and the solution was apparently to lower the FSB.

When running the Voodoo 1 at 133mhz FSB, most DOS 3DFX games will not work. Windows Glide games do. I've tested and confirmed this in a previous post here on Vogons.

What does work and what may not, could potentially vary from motherboard to motherboard and Voodoo to Voodoo card.

Well...

I had actually been considering underclocking this thing at some point anyway.

I've been testing all of my games and a couple seem to run just a tad too slow. I'm going to try bringing it down to 100mhz fsb and see how it behaves. This is only temporary anyway. Going to swap out the v1 for dual v2 or a v5 pci as soon as I can afford it.

This is more for just fucking around with a v1 in a way overpowered system for it more than actual usefulness.

Never going to learn the ins and outs of these things if I don't get in there and test.

I know the P3 is way overpowered for the v1 card, but, since I'm going to rebuild another box JUST to showcase the voodoo 1, what level of CPU am I looking at to max out the card without really going overboard on it?

I'm going to build the box around the voodoo card, Win95c, DX6.

The 66MHz FSB PIIs would be the max I'd go for Voodoo 1.

Well, I'd pretty much be rebuilding the first machine in my sig. I was thinking maybe switching over to one of the k6-2s I have, 475 or 500mhz, but those are still kinda overkill. I'd get to use those 3DNow! patches for quake though...

I just need to find a decent Millenium or another S3 card to pair it up with as the Stealth 4000 has issues with some DOS games. TIE Fighter refuses to acknowledge the VESA abilities of the card, even with all the helper programs from S3 or display doctor etc.